SOD and other active oxygen inhibitors are directly applied in combination with a barrier material at local sites of tissue injury to prevent or decrease formation of adhesions and undesirable proliferation of cells. Preferred barrier materials are polymeric hydrogels providing controlled release...http://www.google.com.au/patents/US5785993?utm_source=gb-gplus-sharePatent US5785993 - Reduction of adhesions using controlled delivery of active oxygen inhibitors 
